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%I #5 Mar 31 2012 12:36:56
%S 1,252,65653,7951793,781413998,87523201775,10639041328647,
%T 1278262639572374,151324636548284627,17961671348553838529,
%U 2143180368212187643875,256021155630985964451501
%N Number of nX4 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors
%C Column 4 of A203389
%H R. H. Hardin, <a href="/A203385/b203385.txt">Table of n, a(n) for n = 1..173</a>
%e Some solutions for n=4
%e ..2..2..1..0....6..6..0..0....2..4..6..6....2..6..6..4....3..4..4..3
%e ..3..3..4..4....6..6..5..3....2..4..6..6....2..6..6..6....3..4..4..3
%e ..3..6..6..4....3..5..5..3....6..6..1..0....1..4..6..6....1..2..1..2
%e ..0..6..6..0....0..0..0..0....6..6..0..0....0..4..4..1....0..2..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 01 2012
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